A year later 30 American ships cruised around Japan, and by1839 the number of Western whalers had grown to 550, four-fifths of themAmerican.

• 一年后就有30艘美国捕鲸船在那里出现。到1839年，捕鲸船的数量增加到了550艘，占全美总数的五分之四。